JP2012015689A - Ear cap and earphone including the ear cap - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an ear cap to be used for an insertion type earphone, by which a user hears external sound, and also to provide the insertion type earphone.SOLUTION: An ear cap is used for an insertion type earphone to be used by insertion to an external auditory canal, and has a vent hole for guiding external sound to the external auditory canal. The earphone including the ear cap is also provided. The earphone includes: a cylindrical part to be mounted on a sound guide pipe of an earphone body; and an annular part to be extended from an end on the side of insertion to the external auditory canal in the cylindrical part to the other end. The vent hole is arranged at least any one of the cylindrical part and the annular part.

Description

  The present invention relates to an ear cap used for an insertion-type earphone used by being inserted into an external auditory canal, and an insertion-type earphone.

  As an earphone suitable for a portable music player or the like, an insertion type earphone that is used by being inserted into the ear canal and sealing the ear canal is known (for example, see Patent Document 1). Insertion type earphones have high sound insulation by fitting to the external auditory canal, so you can listen to music emitted by portable music players without listening to external noise, and music emitted by portable music players to the outside There is an advantage that it is difficult to leak.

JP 2008-028657 A

  However, since conventional insertion type earphones have high sound insulation, they cannot hear external sounds. For example, when listening to music of a portable music player with an insertion type earphone during running, There was a problem that it was impossible to feel the approach of the sound.

  In view of the above problems, an object of the present invention is to provide an ear cap and an insertion type earphone used for an insertion type earphone capable of listening to external sounds.

  The ear cap of the present invention is an ear cap used for an insertion-type earphone that is used by being inserted into the ear canal, and is characterized in that a vent hole for guiding external sound to the ear canal is provided.

  Even if the user wears the earphone with the ear cap configured as described above on the ear and listens to the sound emitted from a portable music player or the like with the ear cap fitted to the ear canal, the external sound can be heard through the vent hole. To reach the user's ear canal. Thereby, the user can listen to an external sound. Therefore, for example, even if the user is listening to the sound emitted from the portable music player during running, the user can hear the external sound, and thus can feel the approach of the vehicle or the like by the sound.

  The ear cap of the present invention is an ear cap configured as described above, and a tubular portion that is attached to the sound conduit of the earphone body, and an annular portion that extends from the ear canal insertion side end to the other end side of the tubular portion, The ventilation hole is provided in at least one of the cylindrical part and the annular part.

  Even when the user wears the earphone with the ear cap configured as described above on the ear and listens to a sound emitted from a portable music player or the like with the annular portion fitted to the ear canal, at least the cylindrical portion and the annular portion Since one of the vents is provided, external sound reaches the user's ear canal via the vent. Thereby, the user can listen to an external sound. Therefore, for example, even if the user is listening to the sound emitted from the portable music player during running, the user can hear the external sound, and thus can feel the approach of the vehicle or the like by the sound.

  The ear cap of the present invention is characterized in that the ear cap described above includes a plurality of vent holes.

  Since the ear cap having the above-described configuration is provided with a plurality of vent holes, more external sound reaches the user's ear canal via the vent holes. As a result, the user can further listen to the external sound.

  The ear cap of the present invention is characterized in that it is made of an elastic material in the ear cap described above.

  Since the ear cap having the above-described configuration is made of an elastic material, there is an advantage that the annular portion is well adapted to the shape of the user's ear canal and fits to the ear canal.

  The earphone of the present invention includes the ear cap described above.

  The earphone having the above-described configuration can achieve the effects produced by the ear cap described above.

  According to the ear cap and the earphone of the present invention, even if the user puts the earphone on the ear and listens to the sound emitted from the portable music player or the like with the ear cap fitted to the ear canal, the external sound is not vented. To reach the user's external auditory canal. Thereby, the user can listen to an external sound. Therefore, for example, even if the user is listening to the sound emitted from the portable music player during running, the user can hear the external sound, and thus can feel the approach of the vehicle or the like by the sound.

The perspective view which shows the whole structure of the earphone which shows embodiment of this invention Similarly, a front view showing the overall configuration of the earphone Rear view showing the overall configuration of the earphone Right side view showing the overall configuration of the earphone AA sectional view in which the internal mechanism in FIG. 2 is omitted. The figure which shows the ear cap in FIG. Sectional drawing which abbreviate | omitted the internal mechanism which shows other embodiment of this invention The figure which shows the ear cap in FIG.

  Hereinafter, an ear cap and an insertion type earphone according to an embodiment of the present invention will be described with reference to the drawings. 1 is a perspective view showing an overall configuration of an earphone showing an embodiment of the present invention, FIG. 2 is a front view showing the overall configuration of the earphone, FIG. 3 is a rear view showing the overall configuration of the earphone, and FIG. FIG. 5 is a cross-sectional view taken along the line AA with the internal mechanism in FIG. 2 omitted, and FIG. 6 is a view showing the ear cap in FIG. In these figures, only the earphone worn on one ear of the user is shown, but the earphone worn on the other ear has the same structure.

  The earphone 1 is an insertion-type earphone that is used by being inserted into the ear canal and sealing the ear canal, and includes an earphone main body 2 and an ear cap 3.

  The earphone main body 2 is made of, for example, a resin such as plastic, and includes a main body portion 4 and a sound conduit 5. The main body 4 has a portion formed in a substantially rectangular shape and a portion formed in a substantially cylindrical shape, and a portion formed in a substantially cylindrical shape is arranged on the sound conduit 5 side. The side view is substantially horizontal T-shaped. A driver unit (not shown) is provided in the main body 4. The sound conduit 5 is formed in a substantially cylindrical shape having a smaller diameter than the substantially cylindrical portion of the main body portion 4, and a stepped portion that is recessed inward in the radial direction is formed on the outer wall surface in the axial direction. An annular recess 6 is provided. The sound input to the earphone 1 from a portable music player or the like is output to the outside (user) through the sound conduit 5 when the driver unit vibrates.

  The ear cap 3 is made of an elastic material such as rubber, for example, and includes a cylindrical portion 7, an annular portion 8, and a vent hole 9. The tubular portion 7 is attached to the sound path tube 5 of the earphone main body 2. The cylindrical portion 7 is formed in a substantially cylindrical shape, and is provided with a stepped annular convex portion 10 protruding outward in the radial direction at the tip. The ear cap 3 is fixed to the earphone main body 2 by engaging the annular convex portion 10 with the annular concave portion 6 of the sound conduit 5. The annular portion 8 extends like an umbrella in an annular manner from the ear canal insertion side end portion of the tubular portion 7 to the other end portion side, and covers the tubular portion 7. A space is formed between the annular portion 8 and the tubular portion 7, and the ear cap 3 itself is made of an elastic material. Therefore, the annular portion 8 is well adapted to the shape of the ear canal and is thus formed in the ear canal. To fit. The vent hole 9 is a substantially elliptical cylindrical hole having a flat cross section formed over both the cylindrical portion 7 and the annular portion 8. The vent hole 9 allows the external auditory canal to communicate with the outside. A recess 11 is formed around the ventilation hole 9 in order to make the ventilation hole 9 conspicuous in design (to make it easy for the user to see) and to make the ventilation hole 9 easier to open during molding. In the present embodiment, three vent holes 9 are provided.

  When attaching the earphone 1 configured as described above to the user's ear, the annular portion 8 is inserted into the user's ear canal. The earphone 1 is attached to the user's ear by the annular portion 8 being well adapted to the shape of the ear canal and fitting to the ear canal. Since the sound emitted from the portable music player reaches the user's ear canal through the sound conduit 5 with the earphone 1 attached to the user's ear, the user listens to the sound emitted from the portable music player. can do. Here, since the ventilation hole 9 is formed over both the cylindrical part 7 and the annular part 8, even if the user listens to the sound with a portable music player or the like, the external sound is transmitted through the ventilation hole 9. Reach the user's ear canal. Thereby, the user can listen to an external sound. Therefore, for example, even if the user is listening to the sound emitted from the portable music player during running, the user can hear the external sound, and thus can feel the approach of the vehicle or the like by the sound.

  FIG. 7 is a cross-sectional view in which an internal mechanism showing another embodiment of the present invention is omitted, and FIG. 8 is a view showing an ear cap in FIG. In another embodiment, unlike the embodiment described above, the vent hole 12 is provided only in the annular portion 8 and the cross-sectional shape thereof is substantially circular. Members having the same functions as those of the embodiment described above are denoted by the same reference numerals, and the description thereof is omitted.

  In the present embodiment, the configuration in which the vent hole 9 is provided over both the cylindrical portion 7 and the annular portion 8 and the configuration in which the vent hole 12 is provided only in the annular portion 8 have been described, but the vent hole is provided only in the cylindrical portion 7. You may do it. In this embodiment, three vent holes are provided, but less than three and four or more vent holes 9 may be provided. In the present embodiment, the air holes are formed in a substantially elliptical or substantially circular cross section. However, the cross sectional shape may be other than these, for example, a rectangular shape or a square shape.

  DESCRIPTION OF SYMBOLS 1 ... Earphone, 2 ... Earphone main body, 3 ... Ear cap, 4 ... Body part, 5 ... Sound conduit, 6 ... Annular recess, 7 ... Cylindrical part, 8 ... Annular part, 9,12 ... Vent hole, 10 ... Annular Convex part, 11 ... concave part

Claims (5)

An ear cap used for an insertion type earphone inserted into the ear canal,
An ear cap provided with a vent for guiding external sound to the ear canal. A cylindrical part attached to the sound conduit of the earphone body,
An annular portion extending from the ear canal insertion side end of the cylindrical portion toward the other end,
The ear cap according to claim 1, wherein the vent hole is provided in at least one of the cylindrical portion and the annular portion.   The ear cap according to claim 1, further comprising a plurality of ventilation holes.   The ear cap according to claim 1, wherein the ear cap is made of an elastic material.   An insertion-type earphone comprising the ear cap according to any one of claims 1 to 4.

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